Barron Hilton is shown in this undated publicity photo released to Reuters December 26, 2007. Hilton on Wednesday announced plans to donate 97 percent of his $2.3 billion fortune to charity. That wealth includes $1.2 billion Barron Hilton stands to earn from both the recent sale of Hilton Hotels Corp. — started by his father Conrad in 1919 when he bought a small hotel in Cisco, Texas — and pending sale of the world’s biggest casino company, Harrah’s Entertainment Inc. That money will be placed in a charitable trust that will eventually benefit the Conrad N. Hilton Foundation, raising its total value to about $4.5 billion, the foundation said in a statement. REUTERS/Hilton Hotels Corp/Handout (UNITED STATES). EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. NO ARCHIVES. NO SALES.